Process of and apparatus for preparing effervescing baths.



PROGESS'OF AND APP Figl Win/asses:

Way A PATENTED FEB. 18, 1908. L. SARASON.

ARATUS FOR PREPARING E FFERVESOING BATHS APPLIOATION IILBD AUG.12, 1907w Iva/@2116):

THE NORRIS PITIRS cw, WASHINOTONrB. r.

LEOPOLD SARASON, OF HIRSOHGARTEN, NEAR BERLIN, GERMANY.

PROCESS OF AND APPARATUS FOR PREPARING EFFERVESGING BATHS.

Specification of Letters Patent.

Patented Feb. 18, 1908.

Application filed August 12. 1907. Serial No. 388361.

T 0 all whom it may concern Be it known that I, LEOPOLD SARASON, asubject of the German Emperor, residing at Hirschgarten, near Berlin, inthe German Em ire, have invented certain new and useful mprovements inProcesses of and Apparatus for Preparing Effervescing Baths, of whichthe followin is a specification.

My invention relates to a process of preparing effervescing gas-waterbaths and to an apparatus for carrying said process into effect.

Prior processes of preparing effervescing gas-water baths consist eitherin the introduction into the water of chemicals, which by decompositiongenerate the gases in question in the water itself; or in conductinginto the water a gas, such for instance as car bonic acid, from a vesselin which it is stored under high pressure independently of the actualbath.

According to my invention the gases are generated in the bath wateritself. For this purpose the water is rendered electrically conductingby the addition of suitable chemicals, and then submitted to the actionof the voltaic current, whereby it is decomposed into its gaseouselements, hydrogen and oxygen.

In effervescing baths the gaseous bubbles should be distributed as faras possible throughout the whole of the bath water.-

Such bubbles, however, only form directly at the place of contact of theelectrodes with the water and then immediately ascend to the surface. Itis, therefore, requisite that the current conductors be resolved into avery large number of electrodes, located close together over the bottomof the bath vessel. The electrodes must naturally be of some substancenot liable to be attacked,

referably carbon. In employing such baths, I have found that a currentof some 30-50 amperes with 56 volts tension is perhaps the mostsuitable, though stronger currents can be used without the batherremarking the effects of the current as such.

The generation of the gas bubbles depends solely upon the strength ofthe current. A special advantage of my new process, therefore, is thatthe degree to whlch gas is gen-- erated can be exactly re ulated to suitthe particular requirements 0% the patient taking the bath, and. thatthe extent of generation can be maintained absolutely uniform.

In general the effervescing baths will probably be prepared by means ofthe gaseous mixture of oxygen and hydrogen obtained by the electrolysisof water. In this event the anodes and cathodes, which alternate witheach other, will be located together at the bottom of the bath vessel.

One form of apparatus suitable for carrying out my improved process isillustrated in the accompanying drawing, this apparatus being designedfor the preparation of a mixed oxygenand hydrogen effervescing bath.

Figure 1 is a plan of the apparatus. Fig. 2 is a plan of one of theelements separately. Fig. 3 is a diagram illustrating the arrangemizlntof the electrodes and their connecting ro s.

At the bottom of the bath vessel l I distribute a large number ofelements each consisting of an assemblage of parallel rodshapedelectrodes, the anodes 2 and the cathodes 3 alternating and being placedas near as possible to each other without contacting. The groups ofanodes and cathodes respectively are joined by metal rods 4., 5, whichagain are connected with the source of current. The rods 4, 5, and theplaces of connection, are embedded in a suitable insulating material,while the two combshaped groups of anodes and cathodes lie exposed andproject into each other. The ele ments may be furnished with a suitableframe 6 of wood or the like. The entire flat assemblage of elements iscovered by a wooden latticework or like structure 7, which serves tosupport the body of the bather and guard it from direct contact with theelectrodes.

By means of this apparatus mixed oxygen and hydrogen baths can beprepared, the

) water ofwhich is thoroughly permeated with the gases and thus causedto eifervesce uniformly all over.

Having thus described my invention, what I claim as new and desire tosecure by Let ters Patent of the United States is 2- 1. The process ofpreparing effervescing gas-water baths, consisting in rendering waterelectricallyconducting, and in electrolytically decomposing the same bymeans of electrodes distributed over the bottom of the water,substantially as described.

2. An apparatus for preparing effervescing gas-water baths, comprising abath vessel, an assemblage of elements distributed over the bottomthereof, each element consisting In testimony whereof I affix mysignature of sets 01: anfides and cathodes] 1which project in presenceof two witnesses. into eac 0t er without actua y contacting, and meanslocated above said elements for LEOPOLD SARASON' 5 protecting the bodyof the bather from direct Witnesses:

contact with said electrodes, substantially as WOLDEMAR HAUPT,described. HENRY HASPER.

